278998902

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2399}}^1$

素因数の和:2498

約数の個数: 96

約数和(自身を含む): 754790400

約数和(自身を除く): 475791498

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 71, 78, 91, 117, 126, 142, 182, 213, 234, 273, 426, 497, 546, 639, 819, 923, 994, 1278, 1491, 1638, 1846, 2399, 2769, 2982, 4473, 4798, 5538, 6461, 7197, 8307, 8946, 12922, 14394, 16614, 16793, 19383, 21591, 31187, 33586, 38766, 43182, 50379, 58149, 62374, 93561, 100758, 116298, 151137, 170329, 187122, 218309, 280683, 302274, 340658, 436618, 510987, 561366, 654927, 1021974, 1192303, 1309854, 1532961, 1964781, 2214277, 2384606, 3065922, 3576909, 3929562, 4428554, 6642831, 7153818, 10730727, 13285662, 15499939, 19928493, 21461454, 30999878, 39856986, 46499817, 92999634, 139499451, 278998902]

約数ペア:

[(1, 278998902), (2, 139499451), (3, 92999634), (6, 46499817), (7, 39856986), (9, 30999878), (13, 21461454), (14, 19928493), (18, 15499939), (21, 13285662), (26, 10730727), (39, 7153818), (42, 6642831), (63, 4428554), (71, 3929562), (78, 3576909), (91, 3065922), (117, 2384606), (126, 2214277), (142, 1964781), (182, 1532961), (213, 1309854), (234, 1192303), (273, 1021974), (426, 654927), (497, 561366), (546, 510987), (639, 436618), (819, 340658), (923, 302274), (994, 280683), (1278, 218309), (1491, 187122), (1638, 170329), (1846, 151137), (2399, 116298), (2769, 100758), (2982, 93561), (4473, 62374), (4798, 58149), (5538, 50379), (6461, 43182), (7197, 38766), (8307, 33586), (8946, 31187), (12922, 21591), (14394, 19383), (16614, 16793)]